This question may be off topic for HN, but never let it be said that I
didn't answer the call. I eradicated my bedbugs by getting rid of the
mattress, washing all the bedding at 90 C, stripping the room of all
carpets and furnishings down to the floorboards, distributing some
kind of powder that kills them by clogging their pores, and leaving it
that way for several weeks. I feel bad about killing any living
creature so I made an announcement in advance advising them to vacate
the area. That was a few years ago and they haven't been back. When
you check into a hotel room, the first thing you should do is look
under the mattress.